US2583291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve structure
Assignee: Indiana Brass Co Inc
•
Filing: 1948-04-24
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Granted: 1952-01-22
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Expires: 1968-04-24
Abstract
No abstract record available.
Inventors
- 👤 John A Beem
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:28
CPC Classifications
F; F16; F16K; F16K41/00; F16K41/02; F16K41/04; Y; Y10; Y10S; Y10S251/00; Y10S251/90; Y10S277/00; Y10S277/908; Y10S277/91; Y10T; Y10T137/00; Y10T137/6851; Y10T137/7043; Y10T137/7062
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-21 | 1955-07-23 | 1956-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-21 | 1959-07-23 | 1960-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-21 | 1963-07-23 | 1964-01-22 | $7700.00 | Window Closed / Lapsed |